Home / 84.25-126.18-45.64

Finding the Fourth Proportional to 84.25, 126.18 and 45.64

Calculator

Solution

The fourth proportional to 84.25, 126.18 and 45.64 is: 68.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84.25 : 126.18 = 45.64 : x
  2. Step 2: Convert to fraction form
    84.25/126.18 = 45.64/x
  3. Step 3: Cross multiply
    84.25x = 126.18 × 45.64
  4. Step 4: Simplify right side
    84.25x = 5,758.86
  5. Step 5: Solve for x
    x = 5,758.86/84.25
  6. Step 6: Final answer
    x = 68.35

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.